Bisensory evoked potentials: A single-sweep analysis via template reference and parametric identification

A method to identify the component related to each stimulus in the brain potential evoked via bisensorial simultaneous stimulation (visual and somatic) is presented. On a single-trial basis, it is shown that the presence of the somatic stimulus induces on the visual cortex a spread of the electromagnetic field originating from the vertex and a modification in the visual component of the multisensorial potential.